Manufacturing Machinery World October 2021

NEW PRODUCTS – NEW PRODUCTS – NEW PRODUCTS
SUPERIOR
ALUMINIUM
TOOLS
With the MD266 Supreme solid carbide
milling cutter developed for the aerospace
industry, Walter is launching a universal
aluminium specialist. It is suitable for
universal application in all roughing, semifinishing
and finishing operations and has
been designed specifically for ISO N
machining.
Walter offers the uncoated MD266
Supreme (z2/z3) with centre cut and a
reduced neck from 2 to 25mm diameter in
this product range. A transition radius at the
end of the cutting edge minimises transition
steps when wall finishing. According to
Walter, this is why the milling cutter is ideal
for machining deep pockets where slot
milling or ramping has preceded in the
process. The internal coolant with axial
coolant outlet from 6mm diameter maximises
the lubrication and improves the chip
evacuation. This makes a long tool life
possible with minimal build-up on the
cutting edge, thereby ensuring increased
process reliability.
The high level of operational smoothness
of the MD266 Supreme is the result of a 30°
helix angle and low-vibration
microgeometry. This is a particular
advantage for users because high speeds are
frequently accompanied by challenging
conditions. The MD266 Supreme has been
designed specifically for machining wrought
aluminium alloys; particularly for
applications where the focus is on high
power and high metal removal rates, as well
as maximum process reliability.
The best examples of this are the
machining of structural components in the
aerospace industry, as well as components in
general mechanical engineering. The milling
cutter is capable of full slotting and ramping
and, alongside its good performance and
process reliability, is particularly impressive
due to its suitability for universal
applications. For Walter, this aluminium
specialist is another premium tool in the
high-end segment.
www.walter-tools.com
NEW DRILLS DEEPEN
PRODUCTIVITY GAINS
The productivity of deep hole
drilling has now taken a huge step
forward with the arrival of a new
4-fluted series of gun drills from
Guhring. The new VB 80 4-fluted
deep hole drills with a solid
carbide head and the solid carbide
VB 100 Series is the ideal
productivity partners for cast iron
drilling.
The straight flute deep hole
drills are extremely robust with a
geometry that ensures the drill
core is more than 50% of the
overall diameter, demonstrating
maximum rigidity, strength and
performance. Guhring has also
developed an innovative
geometry that consists of two core
cutting edges that are supported
by four outer flutes that are axially
displaced to split the chips,
improve centring and precision
whilst reducing cutting forces. This means
the bottom of the hole will be two-stepped, as
the drill has a 141-degree angle on the
primary cutting edge, which is followed by a
145-degree cutting angle on the outer cutting
edges. The chip clearance is further
improved by four cooling channels that
allow high-pressure coolant to be directed to
each of the four cutting edges – prolonging
tool life by preventing swarf re-cutting and
creating an efficient chip removal sequence.
The new VB 80 and VB 100 deep hole
drills also consist of four round margins with
For finish turning of HRSA materials, NTK
cutting tools has now introduced its new JP0
Bidemics range of inserts. Suitable for
machining HRSA materials at unfathomable
speeds of 480m/min, the JP0 is the latest
addition to the NTK range of Bidemics, a
revolutionary material that can greatly
improve productivity for aerospace
manufacturers that are regularly cutting
challenging materials. Now, the newest
evolution of this unique material technology
from NTK demonstrates improved wear
resistance and performance.
Capable of machining at cutting speeds up
a 90-degree division that further
enhances precision, concentricity
and surface finishes down to IT6.
With the abrasive wear divided
through 4-flutes as opposed to two,
as in most ranges, the new VB 80
and VB 100 have proven to improve
tool life and performance
significantly. In fact, the new deep
hole drills have reduced cycle times
by more than 30% during field tests
whilst also extending tool life, hole
quality and overall performance far
beyond the realms of 2-flute gun
drill variants.
At present, the new VB 80 and
VB 100 Series is available in
diameters from 13.5 to 28mm
diameter with flute lengths up to
500mm. Additional diameters and
lengths can be specified upon
request. The new drills can be
reground from 5 to 10 times
depending upon the axial wear on the drills.
This regrinding facility drastically reduces
cutting tool costs for the end-user with the
drills being returned in a perfect ‘as-new’
condition. At present, the VB 80 and VB 100
are new product lines and Guhring is
working tirelessly to develop an extended
range of drill diameter and length options
whilst trialling the exciting new drills on a
host of additional materials, an exercise that
will undoubtedly create huge productivity
enhancements for manufacturers.
www.guhring.co.uk
NTK LEADS THE WAY WITH NEW
AEROSPACE TURNING GRADE
to 15 times faster than carbide and CBN
alternatives, the NTK JP0 demonstrates
exceptional wear resistance and consistency to
deliver outstanding performance when
machining all your heat resistant superalloy
materials. The new JP0 insert grade is suitable
for running at cutting speeds from 180 to
500m/min with a feed rate of 0.05 to
0.2mm/rev and a depth of cut from 0.1 to
0.7mm.
Currently, NTK has introduced the new
high-performance finish turning grade in three
different designations, the CNGA, DNGA and
VNGA geometries. The 4.76mm thick CNGA
and DNGA inserts are available with a 0.4, 0.8
and a 1.2mm corner radius and an IC of
12.7mm. The VNGA insert designation is
available with a 0.4 and a 0.8mm corner radius
with a 9.525mm IC; all three designations
demonstrate outstanding quality with the
0.04mm honed edge preparation.
www.ntkcuttingtools.com
Manufacturing Machinery World, October 2021 23